Direct thermal emission testing of aperiodic dielectric stack for narrowband thermal emission at mid-IR
Why this work is in the frame
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Bibliographic record
Abstract
Direct thermal testing of aperiodic all-dielectric structures is presented, and its high-Q and emissivity properties are experimentally demonstrated for carbon dioxide (CO2) gas sensing applications. Using a 7-layer dielectric stack consisting of alternating layers of silicon (Si) and silicon dioxide (SiO2), backed by a metallic ground plane, an emissivity of 0.7 and a Q-factor of 113 are achieved at 70°C. Although this structure was already proposed in the literature, this is the first time direct thermal testing is reported, thereby showing narrowband emission properties of such structures when heated above room temperatures. An all-dielectric stack is thus found to be a simple, deposition-based structure that does not require any lateral mask preparation as frequency selectivity is achieved using an aperiodic arrangement of alternating dielectrics with contrasting permittivity. Superior performance over the periodically stacked structure is also demonstrated using numerical examples.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it